#tips {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99999;
  width: 100%;
  height: 100%;
}
#tips .mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: transparent;
}
#tips .content {
  height: 150px;
  line-height: 150px;
  text-align: center;
  min-width: 150px;
  border-radius: 10px;
  background-color: #000000;
  color: #fff;
  position: fixed;
  top: 50%;
  left: 50%;
  margin: -75px 0 0 -75px;
  padding: 0 15px;
}
